Process of embossing elastic webbing.



H. H. ALLISON.

PROCESS OF EMBOSSING ELASTIC WEBBING.

APPLICATION FILED JUNE 19, 1908.

904,912. Patented Nov. 24, 1908.

UNITED STATES PATENT OFFICE.

HARVEY H. ALLISON, OF NEW YORK, N. Y., ASSIGNOR 'lO GEISMAN & MUSLINER,OF NEW YORK, N. Y., A OOPARTNERSHIP.

PROCESS OF EMBOSSING- ELASTIC \VEBBING.

Specification of Letters Patent.

Application filed June 19, 190B.

Patented Nov. 24, 1908. Serial No. 439,451.

To all whom it may concern:

Be it known that I, HARVEY H. ALLIsoN,

a citizen of the United States, residing at the borough of Brooklyn,city of New York, in the county of Kings and State of New York, haveinvented certain new and useful Improvements in Processes of EmbossingElastic \Vebbing, of which the following is a specification.

My invention is a process for embossing elastic webbing, which webbingis composed of a loosely woven fabric having longitudinal strands ofrubber incorporated therewith so that it can be stretched.

h/Iy object is primarily to cheaply emboss fiat commercial webbing withany suitable ornamental design without injuring the elastic propertiesthereof and which embossed design will not pull out and be destroyed onstretching the webbing.

Heretofore raised designs have been produced on such webs by weaving orembroidering the design during the course of manufacture.

In the accompanying drawing 1 indicates the elastic webbing, 2 theshallow female die and 3 the high male die or counter.

My process comprises the use of a very high male die or counter and avery shallow female die, both bearing the design so that the pressurewill be received by the webbing only on the lines of the design and noton the body or flat part. My process differs from that used in embossingleather, paper, etc. in this respect. The pressure employed is quiteheavy being sufficient to give the webbing a permanent set wherever thedies bear.

The temperature to which the dies are 40 heated is about 200 F. which isconsiderably higher than has heretofore been used in embossing paper orleather and is sutliciently high to mold the rubber strands lying between the dies. The pressure is quickly ap plied and released so thatthe Vulcanizing effect of the heat is negligible.

The best results are obtained by elongating the webbing before the heatand pressure are applied as this seems to give the embossing a clearerand sharper appearance and to enable it to hold its outlines under allc011- ditions. It is of course understood that the webbing contracts toits original length after the embossing is completed and the tension isreleased.

I am aware that it is old in embossing to employ heat and pressuresimultaneously and do not claim such process broadly. l. believe thatnone of the eml'iossing processes heretofore practiced can be employedin embossing elastic webbing.

I claim 1. The process of embossing elastic webbing comprising thesubjection of the web bing to pressure. between heated dies whereby thepressure is applied only to lines of the design and not to the body ofthe web and the temperature is sutliciently high to mold the rubber andgive the webbing a permanent set without being applied long enough tovulcanize the rubber.

2. The process of en'ibossing elastic webbing comprising the subjectionof the webbing to heat and pressure between dies whereby the pressure isapplied only to the lines of the design for an interval. of time longenough to ilnpress the design in the web without altering the elasticproperties thereof.

3. The process of embossing elastic webbing comprising the subject-ionof the webbing to the pressure of flat male and female dies heated to atemperature of about 200 I whereby the design is impres ed in the webwithout altering the elastic properties thereof.

f. The process of embossing elastic webbing comprising the elongation ofthe webbing, the subjection of it to heat and pressure between dies, andthe release of the tension whereby it resumes its original length.

In testimony whereof I have affixed my signature in presence of twowitnesses.

HARVEY H. ALLISON.

\Vitnesses R0131. B. Knmoonn, CONRAD DIEHL.

